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Which of the following compound inequalities is represented on the number line as a bounded open interval?

Answer and explanation

Correct answer: \(-3 < x < 4\)

In \(-3 < x < 4\), x takes all values between \(-3\) and \(4\), but neither endpoint is included. Hence, the number line has open circles at \(-3\) and \(4\), with the segment between them shaded; this is a bounded open interval. Option B includes both endpoints, so it represents a closed interval. Exam tip: Use an open circle for ‘<’ or ‘>’ and a filled circle for ‘≤’ or ‘≥’.

Related tags

Linear InequalitiesNumber LineOpen IntervalCompound InequalitiesInterval NotationRepresentation On Number LineMathematicsClass 11 Mcq

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